程序包 me.insidezhou.southernquiet.util

类 SnowflakeIdGenerator

java.lang.Object

me.insidezhou.southernquiet.util.SnowflakeIdGenerator

所有已实现的接口:

IdGenerator

public class SnowflakeIdGenerator
extends java.lang.Object
implements IdGenerator

基于twiiter snowflake算法、64bit、默认秒级精度的发号器

0 - timestamp - highPadding - worker - lowPadding - sequence

字段概要

字段

修饰符和类型	字段	说明
static long	EPOCH
static int	HighPaddingBits
static int	LowPaddingBits
static int	SequenceStartRange
static int	TickAccuracy
static int	TimestampBits
static int	WorkerIdBits

构造器概要

构造器

构造器	说明
SnowflakeIdGenerator(int workerId)
SnowflakeIdGenerator(int workerId, int timestampBits, int highPaddingBits, int workerIdBits, int lowPaddingBits)
SnowflakeIdGenerator(int workerId, int timestampBits, int highPaddingBits, int workerIdBits, int lowPaddingBits, long epoch, java.util.Random random, int sequenceStartRange, int tickAccuracy)
SnowflakeIdGenerator(int workerId, long epoch)
SnowflakeIdGenerator(int workerId, java.util.Random random, int sequenceStartRange)

方法概要

修饰符和类型	方法	说明
long	generate()
long	getSequenceFromId(long id)
long	getTimestampFromId(long id)
long	getWorkerFromId(long id)
static int	maxIntegerAtBits(int bits)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

EPOCH

public static final long EPOCH

另请参阅:

常量字段值

TimestampBits

public static final int TimestampBits

另请参阅:

常量字段值

HighPaddingBits

public static final int HighPaddingBits

另请参阅:

常量字段值

WorkerIdBits

public static final int WorkerIdBits

另请参阅:

常量字段值

LowPaddingBits

public static final int LowPaddingBits

另请参阅:

常量字段值

SequenceStartRange

public static final int SequenceStartRange

另请参阅:

常量字段值

TickAccuracy

public static final int TickAccuracy

另请参阅:

常量字段值

构造器详细资料

SnowflakeIdGenerator

public SnowflakeIdGenerator(int workerId,
                            int timestampBits,
                            int highPaddingBits,
                            int workerIdBits,
                            int lowPaddingBits,
                            long epoch,
                            java.util.Random random,
                            int sequenceStartRange,
                            int tickAccuracy)

SnowflakeIdGenerator

public SnowflakeIdGenerator(int workerId,
                            int timestampBits,
                            int highPaddingBits,
                            int workerIdBits,
                            int lowPaddingBits)

SnowflakeIdGenerator

public SnowflakeIdGenerator(int workerId,
                            java.util.Random random,
                            int sequenceStartRange)

SnowflakeIdGenerator

public SnowflakeIdGenerator(int workerId,
                            long epoch)

SnowflakeIdGenerator

public SnowflakeIdGenerator(int workerId)

方法详细资料

maxIntegerAtBits

public static int maxIntegerAtBits(int bits)

generate

public long generate()

指定者:

generate 在接口中 IdGenerator

getTimestampFromId

public long getTimestampFromId(long id)

指定者:

getTimestampFromId 在接口中 IdGenerator

getWorkerFromId

public long getWorkerFromId(long id)

指定者:

getWorkerFromId 在接口中 IdGenerator

getSequenceFromId

public long getSequenceFromId(long id)

指定者:

getSequenceFromId 在接口中 IdGenerator